1k citations · 1.4k across the 12 of their papers we have counts for
12 papers
Interplay of Intersite Charge Transfer, Antiferromagnetism, and Strain in Barocaloric ACuFeO Quadruple Perovskites
J. Delgado-Quesada, G. G. Guzmán-Verri
We develop a minimal Landau theory for the concomitant intersite charge-transfer, antiferromagnetic, and isostructural phase transitions in ACuFeO perovskites (A = L…
Landau Theory of Barocaloric Plastic Crystals
R. Marín-Delgado, X. Moya, G. G. Guzmán-Verri
We present a minimal Landau theory of plastic-to-crystal phase transitions in which the key components are a multipole-moment order parameter that describes the orientational order…
Dynamic crystallography reveals spontaneous anisotropy in cubic GeTe
Simon A. J. Kimber, Jiayong Zhang, Charles H. Liang +10
Cubic energy materials such as thermoelectrics or hybrid perovskite materials are often understood to be highly disordered. In GeTe and related IV-VI compounds, this is thought to…
Negative thermal expansion near the precipice of structural stability in open perovskites
Connor A. Occhialini, G. G. Guzmán-Verri, Sahan U. Handunkanda +1
Negative thermal expansion (NTE) describes the anomalous propensity of materials to shrink when heated. Since its discovery, the NTE effect has been found in a wide variety of mate…
Quantum ferroelectric instabilities in superconducting SrTiO
J. R. Arce-Gamboa, G. G. Guzmán-Verri
We examine the effects of strain and cation substitution on the superconducting phase of polar semiconductors near a ferroelectric quantum phase transition with a model that combin…
Large isotropic negative thermal expansion above a structural quantum phase transition
Sahan U. Handunkanda, Erin B. Curry, Vladimir Voronov +5
Perovskite structured materials contain myriad tunable ordered phases of electronic and magnetic origin with proven technological importance and strong promise for a variety of ene…